Apparatus for the Continuous Hot Dip Coating of a Metal Strip, and associated Method

An apparatus for continuous hot dip coating of a metal strip, comprising:

• a vessel having a liquid metal bath;
• a bottom roller arranged in the vessel, the bottom roller for immersing in the liquid metal bath;
• a displacement casing for the metal strip having a lower end for immersing in the liquid metal bath to define a liquid metal seal with a surface of the liquid metal bath and an inside of the displacement casing;
• the displacement casing including a pouring box at the lower end, the pouring box delimiting a front pouring compartment for liquid metal located on a first side of the metal strip, the front pouring compartment facing a first face of the metal strip which faces the bottom roller, and a rear pouring compartment for liquid metal located on a second side of the metal strip, the rear pouring competent facing a second face of the metal strip which does not face bottom roller, the front and rear pouring compartments being inwardly delimited by an inner wall and outwardly delimited by an outer wall, the inner wall including an upper rim below the liquid metal seal to produce a flow from the liquid metal seal into each of the front and rear pouring compartments,
• the outer wall of the rear pouring compartment and a passage plane of the metal strip configured to form an angle, the angle being greater than or equal to 15° in a usage configuration.